public class MergePicUtils { /** * 拼接图片（注：图片需长宽一致） * * @param files img1 ，img2 * @param type 1：横向拼接 2：纵向拼接 * @param targetFile 合成新的图片地址 */ public static void mergeImage(Lis
public class MergePicUtils {
/**
* 拼接图片（注：图片需长宽一致）
*
* @param files img1 ，img2
* @param type 1：横向拼接 2：纵向拼接
* @param targetFile 合成新的图片地址
*/
public static void mergeImage(List<String> files, int type, String targetFile) {
int size = files.size();
if (size < 1) {
throw new RuntimeException("图片数量小于1");
}
File[] src = new File[size];
BufferedImage[] images = new BufferedImage[size];
int[][] ImageArrays = new int[size][];
for (int i = 0; i < size; i++) {
try {
src[i] = new File(files.get(i));
images[i] = ImageIO.read(src[i]);
} catch (Exception e) {
throw new RuntimeException(e);
}
int width = images[i].getWidth();
int height = images[i].getHeight();
ImageArrays[i] = new int[width * height];
ImageArrays[i] = images[i].getRGB(0, 0, width, height, ImageArrays[i], 0, width);
}
int newHeight = 0;
int newWidth = 0;
for (int i = 0; i < images.length; i++) {
// 横向
if (type == 1) {
newHeight = newHeight > images[i].getHeight() ? newHeight : images[i].getHeight();
newWidth += images[i].getWidth();
} else if (type == 2) {// 纵向
newWidth = newWidth > images[i].getWidth() ? newWidth : images[i].getWidth();
newHeight += images[i].getHeight();
}
}
if (type == 1 && newWidth < 1) {
return;
}
if (type == 2 && newHeight < 1) {
return;
}
// 生成新图片
try {
BufferedImage ImageNew = new BufferedImage(newWidth, newHeight, BufferedImage.TYPE_INT_RGB);
int height_i = 0;
int width_i = 0;
for (int i = 0; i < images.length; i++) {
if (type == 1) {
ImageNew.setRGB(width_i, 0, images[i].getWidth(), newHeight, ImageArrays[i], 0,
images[i].getWidth());
width_i += images[i].getWidth();
} else if (type == 2) {
ImageNew.setRGB(0, height_i, newWidth, images[i].getHeight(), ImageArrays[i], 0, newWidth);
height_i += images[i].getHeight();
}
}
//输出想要的图片
ImageIO.write(ImageNew, targetFile.split("\\.")[1], new File(targetFile));
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}
